No wonder Maroon frontman Adam Levine is smiling.

He’s 33 — and, according to a new survey, that’s the happiest year for most of us.

A British website, Friends Reunited, found that 70 percent of people over 40 picked age 33 as their happiest. Only 6 percent said they were content during their college years; 16 percent pointed at their childhood.

“The age of thirty-three is enough time to have shaken off childhood naivety and the wild scheming of teen-aged years without losing the energy and enthusiasm of youth,” says psychologist Donna Dawson. “By this age innocence has been lost, but our sense of reality is mixed with a strong sense of hope, a “can do” spirit, and a healthy belief in our own talents and abilities. We have yet to develop the cynicism and world-weariness that comes with later years.”

Man, 33 was a tough year for me.

I went through a bad breakup, had to find a place to live, and just changed my jobs. But honestly, in hindsight, it turned out to be the best thing for me.

I needed to get out of that relationship — and I wouldn’t have done it myself — and I needed to refocus on my own life. I threw myself into teaching and freelancing — my career now — and got a dog, Sunny, who’s been a central part of my life. I surfed in Fiji, completed a triathlon, traveled to Europe and met my soon-to-be husband. Can’t complain!

So was 33 the best year of your life?